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Colour Technology
Why use Colours? Identification Branding Convey a Mood or a Style Choice
Introduction ,[object Object],[object Object],[object Object]
Colour Assessment ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],observer object light source
Human Visual System
The Retina ,[object Object],[object Object],[object Object],[object Object]
The Rods and Cones
The Rods and Cones 5 million per eye (more L  and M cones than S cones) 100 million per eye  Responsible for daylight  (photopic) vision Responsible for low- level (scotopic) vision Cone function Rod function scotopic mesopic photopic luminance Cones Rods
Eyesight ,[object Object],[object Object],[object Object]
Light source ,[object Object],[object Object],[object Object]
Size ,[object Object],Hence, it is important when decorating to paint a sufficiently large area.
Background colour ,[object Object]
 
Surface finish ,[object Object]
Metamerism ,[object Object],[object Object],[object Object]
Colour Measurement ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Colour
Colour Space ,[object Object],[object Object],[object Object],[object Object]
Colour Space + L  = Lightness  - L* = Darkness + a* =  Redness - a* =  Greeness + b* =  Yellowness  - b* =  Blueness +a* +b* -a* -b* L*=100 L*=0 L* L* -a* +a* -b* +b*
Colour Space - Delta E a* b*  C*  H* is the difference between two points in colour space, often use to determine a colour tolerance or specification. S C S H
Colour Space ,[object Object],[object Object],[object Object],[object Object]
More on Metamerism ,[object Object],[object Object]
Colour Measuring Devices ,[object Object],[object Object]
Colour Measuring Devices ,[object Object],[object Object]
Colour Measuring  Devices ,[object Object],[object Object],[object Object]
Light sources and illuminants ,[object Object],[object Object],[object Object],[object Object]
Colour Matching ,[object Object],[object Object],[object Object],[object Object]
Standard Colour Systems ,[object Object],[object Object],[object Object]
The Material ,[object Object],[object Object],[object Object]
The colourants-Pigments ,[object Object],[object Object],[object Object],[object Object]
The colourants-Dyes ,[object Object],[object Object],[object Object],[object Object]
Legal Restrictions ,[object Object],[object Object],[object Object],[object Object]
Methods of colouring ,[object Object],[object Object],[object Object],[object Object]
Dry Colour or Dry Blend ,[object Object],[object Object],[object Object]
Masterbatch ,[object Object],[object Object],[object Object],[object Object],[object Object]
Liquid colour ,[object Object],[object Object],[object Object]
Fully compounded colour ,[object Object],[object Object],[object Object]
A Polymer for Every Application

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Colour technology

  • 2. Why use Colours? Identification Branding Convey a Mood or a Style Choice
  • 3.
  • 4.
  • 6.
  • 7. The Rods and Cones
  • 8. The Rods and Cones 5 million per eye (more L and M cones than S cones) 100 million per eye Responsible for daylight (photopic) vision Responsible for low- level (scotopic) vision Cone function Rod function scotopic mesopic photopic luminance Cones Rods
  • 9.
  • 10.
  • 11.
  • 12.
  • 13.  
  • 14.
  • 15.
  • 16.
  • 18.
  • 19. Colour Space + L = Lightness - L* = Darkness + a* = Redness - a* = Greeness + b* = Yellowness - b* = Blueness +a* +b* -a* -b* L*=100 L*=0 L* L* -a* +a* -b* +b*
  • 20. Colour Space - Delta E a* b*  C*  H* is the difference between two points in colour space, often use to determine a colour tolerance or specification. S C S H
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  • 38. A Polymer for Every Application